Cisco WCS Alarms and Events

BC.

The correct answers are B and C.

Explanation:

Cisco WCS (Wireless Control System) provides a comprehensive suite of tools for wireless LAN planning, configuration, management, and troubleshooting. The alarms and events feature of Cisco WCS allows administrators to monitor the performance and status of their wireless network, and receive notifications when certain conditions are met.

Here are the explanations for each answer:

A. An alarm is the listing of an SNMP trap from a WLAN controller.

This statement is not true. An SNMP trap is a message sent from a device, such as a WLAN controller, to a network management system (NMS), such as Cisco WCS, to indicate an event or a condition that requires attention. An alarm, on the other hand, is a notification generated by Cisco WCS when a specific condition or threshold is met. Alarms are not based on SNMP traps, but rather on the analysis of events and statistics collected from the WLAN controller and the wireless network.

B. An event can be a report about radio interference crossing a threshold.

This statement is true. An event is a significant occurrence in the wireless network that is recorded by Cisco WCS. Events can be generated by various sources, such as the WLAN controller, the access points, or the wireless clients. Examples of events include radio interference, rogue access points, client association failures, and security threats. When an event is detected, Cisco WCS can trigger an alarm, a notification, or an action. In the case of radio interference, for instance, Cisco WCS can report the event to the administrator and suggest a course of action to mitigate the interference.

C. An alarm is a Cisco WCS response to one or more related events.

This statement is true. An alarm is a higher-level notification that is based on one or more related events. Alarms are designed to alert the administrator to a specific condition or problem that requires attention. For example, if several access points fail to respond to pings for a certain period of time, Cisco WCS can generate an alarm that indicates a possible outage or a connectivity issue. Alarms can be classified by severity, such as critical, major, or minor, and can be customized to suit the needs of the administrator.

D. An event summary of critical, major, and minor events is displayed at the top of the Cisco WCS page.

This statement is not necessarily true. While Cisco WCS can display an event summary on the main page, the format and content of the summary can be customized by the administrator. The summary can include various types of events, such as critical, major, and minor events, or specific categories of events, such as security, performance, or configuration events. The administrator can also choose to display or hide the summary, depending on the level of detail and the frequency of updates needed.